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Tartaglia, L.; Sand, D. J.; Valenti, S.; Wyatt, S.; Anderson, J. P.; Arcavi, I.; Ashall, C.; Botticella, M. T.; Cartier, R.; Chen, T.-W.; Cikota, A.; Coulter, D.; Valle, M. Della; Foley, R. J.; Gal-Yam, A.; Galbany, L.; Gall, C.; Haislip, J. B.; Harmanen, J.; Hosseinzadeh, G.; Howell, D. A.; Hsiao, E. Y.; Inserra, C.; Jha, S. W.; Kankare, E.; Kilpatrick, C. D.; Kouprianov, V. V.; Kuncarayakti, H.; Maccarone, T. J.; Maguire, K.; Mattila, S.; Mazzali, P. A.; McCully, C.; Melandri, A.; Morrell, N.; Phillips, M. M.; Pignata, G.; Piro, A. L.; Prentice, S.; Reichart, D. E.; Rojas-Bravo, C.; Smartt, S. J.; Smith, K. W.; Sollerman, J.; Stritzinger, M. D.; Sullivan, M.; Taddia, F.; Young, D. R.
The Astrophysical journal, 01/2018, Letnik: 853, Številka: 1Journal Article
Abstract We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during the ongoing (DLT40) one-day cadence supernova search at in the “edge-on” nearby ( ) galaxy NGC 1532. The subsequent prompt and high-cadenced spectroscopic and photometric follow-up revealed a highly extinguished transient, with , consistent with a standard extinction law with R V = 3.1 and a bright ( ) absolute peak magnitude. A comparison of the photometric features with those of large samples of SNe II reveals a fast rise for the derived luminosity and a relatively short plateau phase, with a slope of , consistent with the photometric properties typical of those of fast-declining SNe II. Despite the large uncertainties on the distance and the extinction in the direction of DLT16am, the measured photospheric expansion velocity and the derived absolute V -band magnitude at after the explosion match the existing luminosity–velocity relation for SNe II.
